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Sodium Sulfide

Specification Sheet
Products name: Sodium sulfide
Molecular Formula: Na2S
 
EINECS: 215-211-5
Cas No: 1313-82-2
Molecular Weight: 78.03
Appearance: Yellow flake or Red flake
HS code:

2832.10

Toxicity: Oral Rat LD50: 208 mg/kg
Specific Gravity:

1.86

Solubility in water: Soluble (slightly soluble in alcohol)
PH: Alkaline
Stability: Stable under ordinary conditions. Oxidizes in air
General Applications:

Sodium Sulfide is a yellow to red solid; soluble in water, slightly soluble in alcohol. It is a strong reducing agent and reacts with oxidants. It is primaily used in pulp and paper industry; It is used in water treadment as an oxygen scavenger agent, in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching as a desulfurizing and as a dechlorinating agent and in leather trade for the sulfitization of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. it is used in the production of rubber chemicals, sulfur dyes and other chemical compounds. Its used in other applications include ore flotation, oil recovery, food preservative, making dyes and detergent.

Packages: 25kgsBags
Two grade:

Grade 1
Apperance   red flakes
Na2S   60% min
Na2CO3   2.0% max
Fe   1500ppm max
Water Insolubles   0.5% max
Grade 2
Apperance   yellow flakes
Na2S   60% min
Na2CO3   2.0% max
Na2S2O3   2.05 max
Fe   30ppm max
Water Insolubles   0.5% max


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